SERVICE TEST OF SOLID MANGANESE STEEL CROSSING FROGS WITH PRESTRESSED CONCRETE SUPPORT VERSUS TIMBERS

An inspection of a service installation of a prestressed concrete crossing support is presented. The crossing had been given normal maintenance during the service period. At the end of the first winter the concrete was performing much better than the timbers, with very little vertical movement during traffic. After heavy rainfall the wet subgrade condition resulted in vertical moving of timbers double that of the concrete. A concrete corner was broken off at the point of failure in one of the post-tensioning rods, but there was no evidence of further distress due to reduction of effective rods from six to five. No cause for the break was found. A record of maintenance costs was not kept.

  • Corporate Authors:

    American Railway Engineering Association

    59 East Van Buren Street
    Chicago, IL  USA  60605
  • Publication Date: 1962-2

Media Info

  • Pagination: p. 493-494
  • Serial:
    • AREA BULLETIN
    • Volume: 63 N
    • Issue Number: 570
    • Publisher: American Railway Engineering Association

Subject/Index Terms

Filing Info

  • Accession Number: 00052324
  • Record Type: Publication
  • Source Agency: Association of American Railroads
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Jul 15 1976 12:00AM